Your page implementing Externalizable breaks wicket. Wicket relies of
Page#writeReplace, writeObject, readObject being called. Are you sure
you're no seing any stacktrace?
-Matej
On Sat, Mar 15, 2008 at 3:08 AM, James Carman
<[EMAIL PROTECTED]> wrote:
> All,
>
> I am trying to understand page serialization/deserialization a bit
> better, so I create a Quickstart project and started tinkering. I
> modified the HomePage class as follows:
>
> public class HomePage extends WebPage implements Externalizable
> {
> private static final Logger log = LoggerFactory.getLogger(HomePage.class);
> private static final long serialVersionUID = 1L;
> private int counter;
>
> public HomePage(final PageParameters parameters)
> {
> add(new Label("message", new Model()
> {
> public Object getObject()
> {
> return "I've been called " + counter++ + " times.";
> }
> } ) );
>
> add(new Link("refresh")
> {
> public void onClick()
> {
> log.info("My id is " +
> System.identityHashCode(HomePage.this));
> }
> } );
> }
>
> public void writeExternal(ObjectOutput out) throws IOException
> {
> log.info("I'm being serialized!");
> }
>
> public void readExternal(ObjectInput in) throws IOException,
> ClassNotFoundException
> {
> log.info("I'm being deserialized!");
> }
> }
>
> And, my html template is as follows:
>
> <html>
> <head>
> <title>Wicket Quickstart Archetype Homepage</title>
> </head>
> <body>
> <strong>Wicket Quickstart Archetype Homepage</strong>
> <br/><br/>
> <span wicket:id="message">message will be here</span>
> <p>
> Click <a href="." wicket:id="refresh">here</a> to refresh!
> </p>
> </body>
> </html>
>
>
> Maybe I'm just not understanding this correctly (entire possible), but
> here's what I tried:
>
> 1. Load the home page.
> 2. Click the "refresh" link
> 3. Hit the back button
> 4. Click the "refresh" link again
>
> Now, every time I do that, it updates the "counter" variable every
> time I click the "refresh" link. When I hit the back button after the
> link is clicked, the link points to
> "http://localhost:8080/?wicket:interface=:1:refresh::ILinkListener::";.
> I would assume that when I clicked the refresh link after doing the
> back button that the counter wouldn't update (it'd be 1). Also, the
> "I'm being deserialized" is never called. Am I misunderstanding?
>
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Resizable and reorderable grid components.
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